Machine for shaping uppers over lasts



Dec. 10, 1940. R. H. LAWSON 2224,

' MACHINE FOR SHAPING UPPERS OVER LASTS Filed May 4, 1939 I2 Sheets-Sheet l Dec. 1940' R H.

MACHINE FOR SHAPING UPPERS OVER LASTS Fild May 4, 1939 .12 Sheets-Sheet s Dec. 10, 1940. R. H. LAWSON 2224,157

MACHINE FOR SHAPING UPPERS' OVER LASTS 12 Sheets-Sheet 4 Filed May 4, 1939 Dec. 10, 1940. R. LAWSON 2,224,157

MACHINE FOR SHAPING UPPERS OVER LASI'S Filed May 4, 1939 12 Sheets-Sheet 5 Fig. 6, beg /80 Dec. 10, 1940. R. H. LAWSON 2324,157

MACHINE FOR SHAPING UPPERS OVER LASTS Filed May 4, 1939 12 Sheets-Sheet 6 Dec. 10,, 1940 LAWQQN 2,224,157

' MGHINE FOR SHAPING UPPERS DVER EKSTS Filed May 4, 7 I939 12 Sheets-Sheet 7 Dec. 10, 1940. R, H, LAWSON 2,224,157

MACHINE FOR SHAPING UPPERS OVER LASTS Filed May 4, 1939 12 Sheets-Sheet 8 Dec. 10, 1940. R LAWSON 2.224 157 MACHINE FOR SHAPING UPPERS QVER LASTS Filed May 4, 1939 12 Sheets-She et 9 Dec. 10, 1940. I LAWS-ON 2224,15?

MACHINE FOR SHAIING UPPERS OVER LASTS Filed May 4, 1939 12 Sheets-Sheet 10 Dec. 10, 1940. w R. H. LAWSON J MACHINE FOR SHAPING UPPERS OVER LASTS Filed May 4, 1939 12 Sheets-Sheet l1 Dec. 10, 1940. R. H. LAWSON MACHINE FOR SHAPING UPPERS OVER LASfS Filed May 4, 1939 12 Sheets-Sheet l 2 ohm 8m 28.3%3

r last bottom, a wiper for wiping an insole-attachpermit the jac to e moved freely in a diree- 40 45 pair of end-embracing plates mounted on a pair tioned power-Operated means Operating through 45 Patented Dec. 10, 1940 2,224,157

UNITED STATES PATENT OFFICE MACHINE FOR SHAPING UPPERS OVER LASTS Robert H. Lawson, Beverly, Mass, assignor to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application May 4, 1939, Serial No. 271,802

58 Claims. (01. 12-14) The present invention relates to machines for last is forced into it and thereafter while the inshaping uppers over lasts and'is herein illustrated sole-attaching extension is lasted and secured to 1n its application'to a machine for shaping over an insole on the last bottom. For forcing the lasts uppers provided with outsole-attaching exbottom margin of the upper against the end-em-- 5 tensions and insole-attaching extensions. The bracing plates before the grippers are closed theillustrated machine is particularly suited for opillustrated machine, in accordance With a further eration on prewelted uppers of the type illusfeature of the invention, is provided with a trated in United States Letters Patent No. member c ns ructe nd arranged to e r h 2,119,801, granted June 7, 1938, on an applicaupper and force the upper into engagement with tion of W. C. Vizard. Uppers of this type are the end-embracing plates and then withdraw 10 provided with a welt having two upward extenfrom the upper to admit the last. Preferably and sions between which the bottom margin of an as herein illustrated this member also operates upper is secured, an outward extension for atafter the last has been forced into the upper to taching an outsole, and an extension which is Wipe the ins le-at ac e te 0f the pp secured to an insole. It is to be understood, how i Over the margin O an insole Oh the lestlbetl5 ever, that the invention is not limited to matom. In forcing the bottom margin of the upchines for shaping prewelted uppers over lasts D aga e en b a P e the but is applicable, in certain of its aspects, to maber above referred to also positions the outsolechines for shaping other types of upp rs, for attaching extension of the upper relatively to one example, stitchdown uppers in which the lining of the gripp and ds e pp against the 20 is lasted inwardly over an insole. end-embracing plates until the gripper closes on It is an object of the present invention to prothe outsole-attaching extension and holds the vide a machine which will automatically shape mar in of the upp r n th s t in which said over lasts uppers having outsole-attaching exmember s oc t tensions and insole-attaching extensions, elirnihe ppe s S c e lengthwise thereof ,25 nate much of the hand work heretofore required ce e t e ferepert O t e a y the Operation in the manufacture of such shoes and provide of a work supp le for t real p Of shoes which are better shaped to their lasts and he last and the pp and after the last has of more uniform quality than such shoes heretobeen forced into the upper e jack is moved in fore produced. the opposite direction to force the toe end of the 30 To this end the present invention, in accordlast into the toe end of the upper preparatory to ance with one important feature, provides in a he attachme t of t e t end Of t pp t machine for shaping uppers over lasts a gripper the insole. For moving the jack in a direction to for engaging an outsole-attaching extension of en n h pp r for the p i n of the l 5 an upper and holding the upper under tension the illustrated machine is provided with powerwhich is applied to it in shaping the upper over operated'means and connections therefrom to the a last, a member for forcing the bottom margin j ck i clu a og arranged o pp e of the upper into lasted relation to the periphery e e t W t e jac W e chi e s of the last and the edge face of an insole n th at rest the'dog is held in inoperative position to ing extension of the upper in over the margin of tion leng w se 0 t pp o facilitate the the insole, and a carrier for said gripper, said cation of the upper relatively to the grippers. The member and said wiper. In the illustrated m last is moved in a direction to force its toe end chine there are two such members comprising a into the toe end of the upper by the hbevemehof carriers pivotally mounted for swinging move another jaok-erippi s-m m r 1 dog. This dog ment about a common axis adjacent to the toe similarly to the one above referred to, is held in end of the upper. The illustrated machine also an inoperative position when the machine is at is provided with a plurality of such grippers and rest to permit the jack to move freely lengthwise wipers arranged to operate on an end portion of of the upper. The jack has a fixed movement 50 an upper and means for causing the grippers to for tensioning the upper lengthwise thereof, the grip the outsole-attaching extension of the upper extent of such movement being sufficient to perand to hold it during the operation of the uppermit the forepart of the last to move downwardly embracing plates and the wipers. The illustrated into the forepart of the upper without rubbing grippers hold the forepart of the upper while a against the toe end of the upper. In tensioning v5? the upper lengthwise the work support acts directly against the last, the toe end of the last being positioned for the beginning of the tensioning operation against a member which is located in predetermined relation to the upper. In accordance with a further feature of the invention this member is the member which operates as above described to position the upper relatively to the end-embracing plates and to Wipe the insole-attaching extension in over an insole on the last bottom. To this end the member is moved out of the upper after it has brought the upper into engagement with the end-embracing plates and is then located in predetermined irelation to the end-embracing platesllengthwise of the upper to gage the lengthwise position of the last.

In the shaping of uppers provided with outturned outsole-attaching extensions it is desirable that a well-defined crease be formed at the apex of the angle defined by the upper and its outsole-attaching extension in order to give the bottom portion of the shoe -a finished appearance similar to the appearance of a Goodyear welt shoe. To assist in the formation of such a crease in the upper the illustrated machine is provided with a pair o'f-end-embracing upper-indenting plates which-are mounted on and operate with the end-embracing plates above referred to. In order to obviate the requirement of separate sets of plates for right and left foot uppers the upper-indenting plates and end-embracing plates, in accordance with a further feature of the invention, are constructed and ar ranged to be inverted independently of each other and replaced in the machinein their inverted position.

In accordance with 'a further feature of the invention, the illustrated machine is provided with a wiper assembly comprising a Wiper and carrying means therefor operable to advance and retract the wiper and a member on which the wiper assembly is mounted for swinging movements to orient the wiper relatively to the Work preparatory to the operation of the machine on a run of shoes, said member-being movable to position the wiper assembly in determinate relation to the Work for the beginning of the wiping operation. In the illustrated'machine a gripper is incorporated in each of the wiper assemblies. For operating the gripper and the wiper an actuator is provided, said actuatorbeing constructed and arranged first to elfect the closing of the gripper and thereafter to operate the wiper. In orienting the Wipers relatively .to the work preparatory to the operation of themachine on a run of shoes, the grippers are similarly oriented, the gripper and wiper assembly moving as a unit in'the orientation of said parts. It is important that the grippers be correctly -oriented because they are constructed to engage a substantial amount of the outsole attaching extension of the upper and unless they are correctly oriented, they will not engage the extension uniformly and their gripping action will not be fully effective.

In accordance with a 'fur-ther'feature of the invention, the orientation of'the gripper and wiper assemblies relativelyto the work occurs in mounting the end-embracing plates in the machine, said plates as herein illustrated being constructed and arranged to be seated in recesses provided in the members on which said assemblies are mounted.

Forholding the insole-attaching extension of the upper against the wipers in order to prevent its dislocation by the last as it is depressed into the upper the illustrated machine is preferably provided with means mounted on the wipers for holding the insoleattaching extension against the wipers during the 5 downward movement of the last. The holding means, which is illustrated as a spring operated clamping member, is mounted on the side Wipers only. No such clamp is required at the toe end of the upper since the toe end of the last is 10 spaced from the upper during the depression of the last into the upper.

These and other features of the invention will now .be described with reference to the accompanying drawings and pointed out in the ap- 15 pended claims.

In the drawings:

Fig. l is a perspective view illustrating the head of a machine embodying the present invention;

Fig. '2 .is a plan view of the machine illustrated in Fig. 1 with a. vsho'e'mounted thereon, the clutch mechanism and theitop iof .theiframe being broken away and part of the operating mechanism-shown in'section; 25

Fig. 3 is a plan View similar to Fig. 2 with the shoe removed and the work engaging parts omitted to show underlying parts;

Fig.4 is a sectional elevation taken substantially on the line IV-IV of Fig. 3,..including part .30 of a shoe on the work support, the upper portion of the head being broken-away;

Fig. 5 is a sectional view taken substantially on the line V--V' of Fig. '4;

Fig. 6 is a sectional view taken on the line 35 VIVI of Fig.4;

Fig. '7 is a sectional view taken on the line VIIVII of Fig. 4;

Fig. 8 is a sectional view taken on the line VIIIVI[I 0f Fig. '4; 4,

Fig. 9 is a sectional view taken substantially .on the line IXIX of Fig. 2;

Fig. 10 is a perspective View partly in section illustratingthemechanism which operates on the toe end of the upper;

Fig. 11 is a-sectional view 'taken substantially on the line XIXI of Fig. '3;

Fig. 12 is a sectional view taken substantially on the line XIIXII of Fig. 3;

Fig. 13 is a sectional view takenon the linepi50 XIII"III-of Fig. 12;

Fig. 14 is a sectional view taken substantially on the line.2QfV--XIV of Fig. 1;

Fig. 15 is a perspective view illustrating a carrier member-on which certain operating parts on; the right side of the machine are mounted;

Fig. 16 is a detail View in side'elevation illustrating an upper on its lastmounted on the work support which isshown in broken lines, fragments of the mechanism for operating on the toe end. of the upper being shown in section as they appear-at an intermediate stage in the operation of the machine;

Figs. 1'7 and 18 are detail views in side elevation showing the mechanism illustrated inFig. l6 3 at different stages'in the operation of the machine, certain parts being shown in section and other parts broken away to show certain concealed parts;

Figs. 19, 20 and 21 are detail views partly in section illustrating the mechanism which operates on the left side of the forepart at different stages in the operation of the machine;

Fig. 22 is a plan vi'ewillustrating aninv-erted left foot last in itsrelation to the forepart embracing plates when said plates are in upper embracin position on the last, the corresponding position of a right foot last relatively to said upper embracing plates being shown in broken linespand Fig. 23 is a cam chart.

The illustrated machine is constructed to operate on a shoe upper having an inwardly extending insole attaching flange and an outwardly extending outsole attaching flange. The machine is particularly suited for use in the manufacture of a prewelted shoe such as that illustrated and described in the Vizard patent hereinbefore referred to. The shoe illustrated in the Vizard patbottom of the last and a welt having upwardly extending flanges between which the upper is secured, an insole attaching extension, and an outturned outsole attaching extension.

The illustrated machine is provided with a work support or jack on which is mounted the rear part of a last on which an upper has been assembled. When the last is mounted on the work support its forepart extends upwardly from the forepart of the upper and the forepart of the upper has not been shaped, except to the extent that such shaping is incidental to the stitching of a welt to the upper. The machine is provided with gripping mechanism which engages the out sole attaching extension, means operating on the jack to tension the upper lengthwise thereof preparatory to the depression of the forep-art of the last into the upper, a depressor for forcing the forepart of the last into the upper, forepart embracing members for gripping the forepart of the upper against the last, and wiper members which operate after the forepart embracing members have gripped the upper against the last to work the insole attaching extension inwardly over the margin of an insole on the last bottom.

Preferably both the insole attaching extension and the margin of the insole have been coated with cement for attaching said parts together as the insole attaching extension is worked inwardly over the margin of the insole. The jack, in stretching the upper for the reception of the last. moves away from the forepart of the supported upper a fixed amount which is measured from the position in which the jack is located by bringing the toe end of the last against a gage which is located in predetermined relation to the forepart embracing members. After the jack has operated to tension the upper lengthwise and the forepart of the last has been depressed into the forepart of the supported upper the jack is moved toward the forepart of the upper to bring the toe end of the last firmly into engagement with the toe end of the upper, the forepart embracing members serving as an abutment against which 0 the toe portions of the last and upper are forced by said reverse movement of the jack. After said reverse movement of the jack is completed and while the jack remains at the limit of its reverse movement the forepart embracing members close and grip the upper against the last, and the wipers above referred to advance to effect the cement attachment of the insole attaching flange of the upper to the margin of the insole. Thus, the upper is secured to the insole while it is held closely against the last.

Referring to Fig. 1, the machine head is indicated generally by the numeral 30, said head being mounted on a standard the upper portion of which is identified by the numeral 32. A jack '75 34 projects upwardly and forwardly from the base ent has a scant upper which extends only to the of the head and is provided with a last pin36 which fits rather closely into the thimble provided in the rear part of a last but is slabbed off on opposite sides, as shown at 38 in Fig. I, to

permit a slight lateral rocking movement of the 1 last. The lower portion of the jack 34 is positioned between upward extensions 40 of the base of the head and is mounted for swinging movement on a shaft 42 mounted in said upward extensions. ing movement in the direction of the length of a last supported thereon between parallel L-shaped members 44 which are pivoted at their lower ends to the rear ends ofjlinks 46 (Figs. 1 and 3) the forward ends of which are pivoted to opposite At their elbows the L-shaped members 44 are pivoted to a link 48 positioned sides of the jack.

between them and arranged parallel to the links 46, the forward portion of the link 48 being pivotally mounted in the bifurcated upper end of the jack. Referring to Fig. 4, the last pin is yieldingly held against downward movement by a spring 55 extending from the lower ends of the L-shaped members 44 to a plate 52 projecting from the upper portion of the jack. This spring sustains the weight of the rear part of a last and upper mounted on the pin 36 but without offering substantial resistance to downward. movement of the last to the extent, afforded by the separation of the base of the last pin 35 from the forward end of the link 48 as shown in Fig. 4. Thus it will be seen that the last and upper are free to move bodily heightwise thereof and are free to swing about the pivotal connection of the last gagement by three grippers, one at the toe endv of the upper and the other two at opposite sides of the forepart. In Fig. a prewelted upper 54 mounted on a last supported on the jack is shown with the last advanced and the outsole attaching extension 55 of the welt positioned between the jaws of the grippers. The general organi ation of the grippers is illustrated in Fig. 1, the toe gripper being identified by the numeral 58 and the side grippers by numerals 6!! and 62. After the welt at the forepart of the upper has been gripped by the grippers 58, E0 and '52, the toe end of the last is positioned against a T plate 54 (Fig. 16) to locate the last lengthwise thereof or the beginning of the lengthwise tensioning of the upper. This lengthwise tensioning of the upper opens up the bottom of the upper for the reception of the last. It may or may not stretch the upper, depending or whether the upper is scant or full. It will be understood that the rearward movement of the last whereby the tensioning of the upper is effected also serves to position the forepart of the last for its downward movement into the forepart of the upper. Referring now to Fig. 4, a disk 85 on a shaft 68 has a cam groove 5% in which is mounted a roll ii! on a bell crank lever if! mounted on a cross shaft 12. At the end of its arm M the bell crank lever 10 carries a swivel block it through which extends a stem 18 extending downwardly from a rod The lastpin 36 is mounted for swing- 1 815. ,To-effect the lengthwise tensioning-of' the provided with gripping members for connecting said :arms to an arcuate member "86 T-shaped in cross section secured to a segmental extension 88;ofthe'base of the 'jackii-t. Referringto Fig. 1, the "fr-shaped member 83 is so positioned that in conjunction with the arcuate end faces of'the extension 88 of the jack it provides two arcuate grooves 99 in which are mounted arcuate flanges '92 extending inwardly from the arms 84 and arranged to slideagainst theouter .wallst l of the grooves 93. The flanges 92 take the thrust against the T-shaped 'member 83 of gripping members or dogs fit and 98 (Fig. 4) carried between the arms W. ,When the machine is at rest the parts are'in the position illustrated in Fig. 4

with the dogs 9'6 and '98 disengaged from the member "86 and the jack at thelimit of its clockwise or out-ward movement, in which position it is located by the engagement of a cross plate "H38 secured to the lower end of the member EE with the lower edge faces of the arms '84, said arms in turn being located against a fixed crosshead i332 and yieldingly held against upward or clock- -wise inovementby two torsion springs 10 1 (Figs.

3 and 8) mounted on a stud i063 secured to an upward extension I38 of the base of the machine head. Ihe forward ends l (2 (Fig. 4) of the springs Hid are connected by links I H) tothe arms 86 while the rear end portions 1M bear against the upward extensions of the base of the head. When the machine is at rest the arms 8% are disconnected from the jack and the jack is free to swing forwardly or in a counterclockwise direction on the shaft 2 to advance the toe end of the shoe into a position in which the welt at the toe end of the upper is located in correct relation to the toe gripper 58 as shown in Fig. 16. It will be understood that the position of the jack after the upper has been so located is variable, de-

pending upon the size of the upper, but the operation of the cam 66 swings the jack to the same extent regardless of the position in which it is located after the upper has been positioned relatively to the grippers. Referring now to the construction and operation of the dogs which connect the arms8 i to the jack, the upper dog 9% is pivotally mounted on a crosspin ll 6 in the arms 84 and carries at its outer end a crosspin M8 the outer ends of which move in slots 12E! provided in the arms at. Pivotally mounted on the crosspin H3 within the bifurcated end of the dog 96 is the head E22 of the rod 80 (Fig. During the first stage of the counterclockwise movement of the bell crank lever Fill the rod 88 moves'upwardly, swinging the dog 95 in a clockwise direction and bringing its arcuate end face I2 1 (Fig. 4) into gripping or wedging engagement with the 'T-shaped member 8'6. During the remainder of the counterclockwise movement of the bell crank lever ill the jack is swung outwardly or in a clockwise direction, as seen in Fig. 4, to a predetermined extent to tension the upper lengthwise thereof to admit the last. The upper is held under tension while the forepart of the last is forced downwardly into the forepart of the upper, whereupon the cam 56 operates to swing the bell crank lever ill in a clockwise direction as seen in Fig. 4, disengaging the dog 96 from the T- shapedmembertiiand then swingingt'he arms 64 downwardly.- "During their downward movement the arms'il i operate-through the lower dog 98 to swing the jack inwardly, said'dog having been brought into gripping engagement withthe T- shaped member 8% during, the intial or counterclockwise movement of the bell crank lever by a spring .125 ;one endqof which is anchored to one of the upwardextensions 40 of the base of the head and the-opposite endof-which-engages a pin I26 (Fig. '7) at the freeend of an arm I39 pivoted on a shaft H32 mounted in upwardextensions of thebase of the head. The arm I carries a roll 11.35 "which operates against .a downwardly extending tail 13.6 of the dog98 to cause the dog togrip the jack. The operation of the dog 981s timed'sand controlled by a .bell crank lever hit mounted on ."the shaft 132 and connected by a link hi! to the bell crank lever 1.0, and provided with a roll Me which .operates against the tail ofthe dog. Th inward movement of the 'jack forces the toe end of the last against' the toe end of the .upper while forepart embracing plates hereinafter-described serve as an'abutment for the :toe end of the upper. swinging the jack'inwardly the bell cranklever 70 operates against a spring I38 surrounding the stem '18 of th-e'rods Shand after the last has been brought firmly into engagement with the inner surface of the toe end of the upper'further clockwise-movementof the bell crank lever "it merely compresses the spring l38, thus obviating possible damage to the upper. The'forward pressure thus exerted on thelastis'maintained during the subsequent operations of the machine, and during the latter part of the machine cycle after the insole attaching flange of the welt has been wiped over the margin of the insole and cement at-. tached thereto, the bell crank lever'ifl isfurther swung in a clockwise direction, as seen in Fig. 4,

to return it to its rest position. During this final clockwise movement of the bell crank lever the dog '98 is disengaged-from the T-shaped member "'86 by the operation of the bellcrank lever I'M],

leaving the jack free to swing outwardly to facilitate removal of the work. 'Upon disengagement of the dog'QB from'the T-shaped member '36 the springs 1M return the arms 84 totheirrest position and the spring I38 expands, thus returning the rod 80 to its rest position,

Before the toe gripper '58 (Fig. 11) closes on the outsole attaching extension .56 of the Welt the toe end of the upper is moved forwardly to position said outsole attaching extension relatively to the operating instrumentalities ofthe machine by the operation of the Teshaped plate 64. If the last is in the upper duringthis initial operation of the plate its toe end must be swung upwardly by the operator before starting the machine to provide clearance for the operation of the plate. This will require no special attention on the part of the operatoriinasmuch as 'he will, for his-own convenience, swing the toe end of the last up awayfrom-thetoe end of the upperzinv order to make it easierfor him to position the outsole-attaching extension of the welt relatively to the grippers. Theprime'purpose of 'the forward movement :of the'itoe end of the upper bythe plate 64 .is to bring the toe end of the upper firmly against :the forepart-embracing plates Z and'upper-indenting plates .238, hereinafter described, in'order that'the toe end of the upper'will be correctly positionedfor the succeeding operations of the machine and particularly'in order that-the toe end of'the upper will be so positioned that the upper-indenting plates 238 will form an indentation or crease line in the welt at the apex of the angle formed between the outsole attaching extension 56 and the grain flap 246 secured to the upper. In locating the toe end of the upper relatively to the forepartembracing plates and the upper-indenting plates, the plate 64 also positions the outsole-attaching extension 56 of the welt in the most desirable relation to the toe gripper 58. During the first stage of the machine cycle the plate 64 moves forwardly or to the right, as seen in Fig. 11, from its rest position, then downwardly into the toe end of the upper, then rearwardly or to the left, as seen in Fig. 11, to force the welt at the toe end of the upper into position for engagement by the toe gripper 58. The plate 64 holds the Welt in this position while the toe gripper closes on the welt, then it moves upwardly out of the upper and into its position illustrated in Fig. 11. In this position it serves as a gage to locate the last lengthwise for the beginning of the upper tensioning operation as above described. I After the forepart of the last has been forced downwardly into the forepart of the upper the member 64 again moves forwardly or to the right, as seen in Fig. 11, to wipe the insole attaching flange I46 of the welt inwardly over the margin of the insole. The T-shaped member 64 is mounted in the slotted end of a lever I48 and secured therein by a headed pin I58 which is removable to permit the member 64 to be withdrawn from the lever I48 and inverted and then replaced in said lever. The construction of the member 64 is such that in one position it is adapted to operate on a right foot shoe and after inversion from said position it is adapted to operate on a left foot shoe. The lever I48 is pivotally mounted midway between its ends between the upper ends of upwardly extending parallel arms of a bell crank lever I52 mounted on a cross shaft I54 at the upper end of the machine head. For moving the lever I48 bodily in the direction of the length of the upper a disk I56 (Fig. 10) on the cam shaft 68 has formed in one side a cam groove I58 in which is mounted a roll I 66 on a bell crank lever I62 mounted on a cross shaft I64. At its free end the bell crank lever I62 carries a swivel block I66 which has a threaded stud I68 extending upwardly therefrom. Threaded on the stud I68 is the lower end of a spring I10 the upper end of which is threaded onto a similar stud I12 extending downwardly from a swivel block I14 pivoted to the free end of the arm I16 of the bell crank lever I52. It will be seen that the spring I16 serves as a link connectingthe bell crank lever I62 to the bell crank lever I52. During the first stage of the machine cycle the spring I10 .is

,moved upwardly by the bell crank lever I62,

swinging the bell crank lever I52 in a clockwise direction, as seen in Fig. 11, moving the T- shaped member 64 to the right into a position over the toe end of the bottom opening of the upper. The spring I16 is normally contracted, as shown in Fig. 10, to .a point where adjacent coils of the spring are in contact with each other. Thus, during the upward movement of said spring, it serves as an unyielding link from the bell crank lever I62 to the bell crank lever I52. After the T-shaped member 64 has been brought into a position over the toe end of the bottom opening of the upper it is moved downwardly by mechanism hereinafter described, and thereafter the bell crank lever I62 operates to move the member 64 to the left, as seen in Fig. 11, in order to force the welt into position to be engaged by the toe gripper 58. This movement is effected by a downward movement or pull exerted on the spring I18 by the bell crank lever I62, the spring in this instance serving as a yielding connection between the two bell crank leversand obviating damage to the upper by the operation of the member 64. For imparting to the member 64 its movements heightwise of the upper a bell crank lever I18 (Fig. 10) is mounted on the cross shaft I64. This lever carries at its lower end a roll I88 which is mounted in a cam groove I82 in the disk I56. Pivoted to the free end of the bell crank lever I18 is a rod E84 the upper portion of which is slidably mounted in a swivel block I86 pivoted on the lever I48. At its upper end the rod I84 carries a nut I88 which bears against the swivel block as the rod I84 is moved downwardly by the operation of the bell crank lever I18 to lift the member 64 out of the upper. During the forward movement of the member 64 to wipe the insole attaching flange I46 of the welt in over the margin of the insole the member 64 is yieldingly moved downwardly to press the flange I46 against the insole by the operation of the bell crank lever I18, the yielding action of the a member 64 on the flange I46 being afforded by a spring I98 surrounding the rod I54 and confined between the swivel block I 86 and a nut I92 on said rod.

For forcing the forepart of a last into the forepart of an upper in the machine while the outsole attaching extension of the welt is held by the grippers 58, 66 and 62, the illustrated machine is provided with a presser foot I94 (Figs. 1 and 12). The presser foot I64 is removably secured to the lower end of a rod I96 and is invertible to adapt it for operation on both right and left foot lasts. Both the top and bottom of the presser foot are provided with insole engaging flanges I98 which are contoured to engage the forepart of the insole. During the first stage of the downward movement of the presser foot it levels or orients the forepart of the insole on the last bottom so that the insole will'be correctly positioned rela-,

tively to the operating instrumentalities of the machine after the presser foot has completed its downward movement and forced the last into the forepart of the supported upper. The rod I96 which carries the presser foot is secured by a split clamp 28!] to the free end of an arm 262 which is secured to the upper portion of a shaft 204 mounted for sliding and turning movement in bearings 266, 261 and 268 (Fig. 12). The presser foot I64 is so positioned relatively to the arm 282 that when the arm is swung from its rest position illustrated in Fig. 1 inwardly over the forepart of a last in the machine the bottom flange I98 of the presser foot is spaced uniformly from the edge of the insole. The operative position of the presser foot lengthwise of the last is determined by a finger 2m (Figs. 12 and 13) on a collar 2I2 splined on the shaft 264 and confined between the bearings 201 and 268 and a stop 2I 4 which the finger engages to arrest the swinging movement of the arm 202. The presser foot is yieldingly held in its retracted position and at the limit of its upward movement, as illustrated in Fig. l, by a spring 2I6 surrounding the upper portion of the shaft 264 and confined between the hub of the arm 262 and the bearing 266. The spring 2I6 operates by its expansion to move the presser foot upwardly from its operative position gag-ingedge faces which are shaped to the pefrointhe body portion of the' carrier;

and it operatesasa torsion spring to swing the presser foot outwardly into its retracted position. To this-end the upper end of. the spring is arranged f'or' engagement with a pin 218" (Fig. 12)

: on thehubofthe arm 2il2 and the lower end of the-spring is arranged for engagement with a pin 2 2il on the bearing 2%. The'presser foot is manually swungfrom it's-retracted position in Fig. 1 intoposition to operate onthe forepart of the last.- For moving the presser foot downwardly to force the forepart of the last into the supported upper there is provided on the cam shaft 68 a disk 222' (Fig. 12) having in one side a cam groove ZZE- which receives a roll 226 at one end of a-beil crank lever 22 8 mounted on a cross shaft 229. At itsoppositeend the lever 228 carries a roll- 23% Whioh is positioned betwen collars 232 and-234 secured'to the shaft 204-.

- For embracing the welted margin of the forepart of the upper adjacent to the outsole attachingextension-Et-ofthe welt andbringing it firmly into engagement with the periphery of the last and-the edge face of an insole on the last bottom the illustrated-machine is provided with forepart embracing plates 235" (Fig. 1) having upper enriphery ofthe forepart of thelast'. Mounted on theforepart embracing plates 23% are upper-indentingpl'ates 2 38 thework engaging edges of wh'ioh'ha'vethe same shape as the work engaging edge faces of theplates 236. The upper-indenting plates are spaced inwardly from the edge faces-of the plates 2% (Fig. 11) for engagement withthe welt at theapex of the'angle defined by the-outscleattaching extension 55 and the outer or grain' flap iidil secured to the upper. The indenting plates 238 form a well-defined welt crease in the upper and improve the" appearance" of theshoe; The-forepart embracingplatesfit andthe indenting plates 238; together with the" toe'gripper- 53; the'side grippers 6i] and 6'2 and partsof their operating mechanism are mounted incarrier-s 2 3-2" and 244 (Fig. 14). The carrier 2 l 1 isillustrat-ed-in detailin Fig. 15-. The construction and arrangement of the carrier 242 will be understood from the following description of the carrier 2 34. This carrieris provided with arcuate bearing'members 24'8" and 250 which'extend, respectively, upwardly and downwardly Referring toFig; 11'; the arcuate'bearing member 2&8, together with a corresponding bearing member of the'carri'er 242', aremounted to' swivel in a bearing' provided ina plate 2'52'secured'to the top of the machine head" 311, and the lower bearing memberiii), together with" a corresponding bearing' member in-the carrier'242, are mounted in a similar bearing irr a crosshead' 254; The, body portions of the carriers2 i2 and 244 are confined between" the plate 252' and the crosshead 254- to hold" the carriers against movement heightwise thereof. A- half-round groove 256' (Fig. 15) extends heightwise of" the carrier 2:14- and is arranged in concentric relation to the bearing members2'48 and 259. This groove and a corresponding groove in the carrier 242 provide a bearing-for a shaft 258 (Fig. 11)' having at its upper "end a head 261) which is rabbeted at 232m provide aseat forthe'forepart embracing plates 256; The carrier 244 is also providedwith a bearing 24% (Fig. 15) for a shaft 266- corresponding to t-hesh'aft' 258and provided'with a similar head 268-(Fig. 1)-. A'like shaft Z'IO-(Fig. 14) is mounted in a: similar bearing 272 in the carrier 242-. The'heads of the three shafts 258', 266 and 210 are recessed; as-indi'catem for example, at El i-in Fig. 1-1; to'pr-ovide clearance forthe forepart of the upper 54-. The forepartembracing plate 2%, together with the upper indenting plate 238 at theright of the machine, is held in place on the carrier 2 l4 by a-looseheaded pin 280 which extendsthrough holesprovided in outward extenand extending upwardly through a hole in a similar extension ofthe upper-indenting plate 238 and downwardly into'a' recess 286 (Fig. 15) in a boss 288- on an outward extensionef the carrier 241. The recess 2% extends through the front wall'of the bossto facilitate removal ofthe plate- To adjust the machine 236 from the machine. for operationon' upper of the opposite foot the pin Zfifliswlthdrawn, asis'also the corresponding pin (Z-Ell (Fig. 1) at the left of the -machine, whereupon-the plates 23'6 and238 are moved toward the jacle and out of the machine, the plates- 2'38'5 removed from the forepart embracing plates- 235; the forepart embracing plates inverted; the 'pl'ates- Ztfl mounted on the upper surfaces of the inverted forepart embracing plates, and the plat'esreplaced in the machine and again securedby the pins28ii and 2%; In Fig. 22 theposition" ofthe forepart embracing plates for operation on left foot uppers is shown in full lines and their position for operating on right foot uppers is shown inbroken lines: In closing on the forepart of the upper theplates 2% swing about a center" common to the adjacent ends 29-2- of the-upper engaging edge faces ofthe plate's 236, the ends of said edge faces being directly above the center of the shaft 258- (Fig. 14). It will be understood that the center about which the plates 236 turn is a fixed-center and the plates 236* have no bodily movement lengthwise of the upper. The plates Ettare closed on the upper byswinging movement of the carriers M2 and 2M toward each other by mechanism now to be described. Referring to Fig. 9, the disk 'on the shaft 68 has a cam groove 296 in which is mounted a roll 298 at thelower end of a bell-crank lever 3M which is secured to the'shaft' 22%. The lever Sill) operates the-carrier 24 2 (Fig. 2). For operating the carrier 244 there issecured to the shaft 229 a lever SE32 which is substantially the same in its construction and operation as that part" of the lever are extending upwardly from the shaft 229. Re-

ferring to Fig. 9, the lever 313i? is provided at its upper end with a head" 3% which is bored to receive ahead 3% of a pin 393. The pin is surrounded by a spring 3 H? confined between the head 3% and a threaded plug 312, the plug being bored to permit the pin to slide through it. A similar threaded plug 4M (Fig. 2)- is provided in the head Mt of the lever 392 which operates t e carrier 244. A nut 314- at the outer end of the pin 358 limits the advancement of the pin by the spring 3 ill and prevents the head-0f the pin from moving out of the bore in the lever 300. Mounted in the head 3% of the pin is the ball endof a link 3i6-the opposite end of which'has a ball and socket connection to-the carrier 242. The rest position of the carrier-is determined by the position of the plug 312 in the bore in the head of the lever 3 35- and it will be seen that the plug may be adjusted to vary the rest position of the carrier. the carrier 24 i are similar to the connections The connections from the lever 302 to from the lever 360 to the carrier 242 andwill bel understood'from the above description.

For closing the toe gripper 53 on .the outsole attaching extension 56 of the welt a spring 3i8 (Fig. 11) is mounted in a bore 326 extending up:

wardly into the lower portion of the shaft 238, the lower end of the spring being seated in a recess 322 in a short lever 324 pivoted to a lug 326 extending downwardly from an extension 328 of a collar 33!] secured tothe shaft 238. Similarly, the left side gripper 66 (Fig. 19) is operated by a spring 332 mounted in a bore 334 extending upwardly into the lower portion of. the shaft 210 and arranged to engage a short lever 336 which is pivoted on a pin 338 in a lug 333 on an extension of a collar 343 secured to the shaft 273. For operating the right side gripper 62 (Fig. 1) there are provided a spring and lever (not shown) similar to the spring and lever which operate the left side gripper 66. The organizations of the three gripper assemblies are substantially alike and will be understood from the following description of the organization of the left side gripper assembly illustrated in Fig. 19. The short lever 336 is connected to the gripper by a link 342 which extends upwardly from the lever through suitable openings in the collar 34!] and the carrier 232. For mounting the gripper 63 the head of the shaft 210 has an extension 344 which has an upwardly extending lug 343 to which the arm of the gripper is pivoted. Thus it will be seen that the gripper 66 and the lever 336 swing in unison during turning movement of the shaft 276 to adjust the gripper to the work and to locate it so that its longitudinal center line is perpendicular to the work-engaging edge face of the upperembracing plate 236. This adjustment of the gripper occurs after inversion of the upper-embracing plates, as hereinbefore described, and also after replacement of said plates by plates of different size or style. The adjustment is effected automatically by the engagement of the left plate in the rabbeted head of the shaft 273. For supporting the extension 334 of the head of the shaft 216 the carrier 232 has a rail 356 on which said extension is slidably mounted. See also the rail 332 of the carrier 2M illustrated in Fig. 15. When the machine is at rest the grippers are held open against the pressure of their operating springs by an actuator 354 (Fig. 1) having at its upper end a table 356 which acts on the gripperoperating levers 324, 336 and 353. The closing of the grippers is timed and controlled by downward movement of the actuator 354 while the opening of the grippers is effected by the upward or return movement of the actuator. For operating the actuator the disk 222 (Fig. 11) on the cam shaft 63 is provided with a cam groove 366 in which operates a roll 362 carried by a bent lever 364 mounted on the shaft 223 and pivoted to the actuator 354 just beneath the table 356. At its lower end the actuator is pivoted to the free end of an arm 366 on the shaft 72, which arm maintains the required alinement of the actuator.

For wiping the insole attaching extension of the welt inwardly over the opposite side margins of the forepart of the insole the machine is provided with wiper plates 338 and 373 (Fig. l) which are substantially alike in their construction and operation. The construction and operation of the wiper plates will now be described with reference to the wiper plate 316, as shown in Fig. l. The plate 310 tapers toward its wiping edge which is slightly concave to agree with the curvature of the periphery of the forepart of a shoe and has a downwardly extending wiping lip. At its thick end the wiper plate has ears 3'12 through which extends a pin 37M. Mounted on the pin between the ears 312 are two parallel arms 316 which are pivoted at their outer ends to a lug 3'58 on an extension of the shaft head 263. The wiper plate is held in its retracted position shown in Fig. 1 by two torsion springs 380 on apin 38?. mounted in plates 384 on the pin 314. The end portions of the springs 383 are extended for engagement with the Wiper plate 373 and the arms 316 respectively, against which they exert a downward pressure which, in the case of the wiper plate, is taken by the gripper 62. The wiper plate 313 is advanced by downward movement of the pivotally connected ends of the plate 376 and the arms 3 13 by mechanism hereinafter described. During such downward movement the plate and the arms are straightened, causing the wiping edge of the plate to advance and perform its function. As the plate advances the springs 333 maintain a downward pressure against it,

causing it to apply pressure to the insole attaching extension of the welt sufficient to cause the tuator35 i subsequent to the closing of the gripperson' the outsole attaching extensionofthewelt. For operating the wiper plate 363 the table 336 of the actuatorhas a lateral extension 336 which engages an extension 38'! of a vertical bar 338 pivoted at its upper end on a pin 393 on the plate 366 and provided near its lower end with a slot 392 through which extends the pin 338 on which is pivoted the lever 336. Also pivoted on the pin 338 is a latch 334 which engages a shoulder 366 on the bar 333 as the wiper plate comes to the limit of its advancement (Fig. 21) and prevents return movement of the wiper plate. The latch remains in engagement with the shoulder 336 while the actuator 334 lifts the gripper 60 01f the welt and causes the gripper to lift the wiper 368 off the welt. The return movement of the wiper occurs after it has been elevated by the gripper 3i) sufficiently to prevent engagement of the work by the wiper as it is retracted. The return movement of the wiper occurs near the end of the machine cycle immediately after a pin 393 on the lever 336 engages extensions of the latch 394, one of which is shown at 436 in Fig. 19, and disengages the latch from the shoulder 396 on the bar 333, thus permitting torsion springs 432 to retract the wiper plate.

During the downward movement of the last the insole attaching extension I46 of the welt at the sidesof the forepart of the upper must be held back away from the last as seen in Fig. 16 so that the last as it moves downwardly will not dislocate it. The operator can, if he desires, hold the insole attaching extension away from the last with his fingers, but this is a difficult and tedious task and for that reason the two side wipers are preferably provided with gripper plates for holding said extension. One of these plates is shown at 406 in Fig. 19. This plate is L-shaped and has on one of its arms a grooved boss 466 in which is mounted an inturned end of each spring 402. It will be seen that the bend inthe plate 406 acts as a fulcrum point for the plate and the springs M12 acting at the location of the groove in the boss 433 tend to hold a lip treated with cement.

4H) on the plate 4% against the wiper plate 368'. The upwardly extending portion 41.2 of the plate 406 serves as a handle whereby the. work engaging portion of the plate is lifted to admit the. insole attaching extension I l-5 of the. welt (Fig- In the operation of the machine an upper which may or may not have been assembled on a last is positioned with the outsole attaching.

extension of its welt on the upper indenting plates 23% ready for the operation of the grippers 58, 6t and 62. The operator then depresses a clutch treadle (not shown) to start the machine and the toe positioning plate 64 (Fig. 1)

:enters the toe end of the upper, presses the. upper against the upper embracing plates 236 and holds it there while the grippers close on the welt. Then the plate 64' moves upwardly out of the upper and into its last-gaging position (Fig. 16). At this point the machine stops to permit the operator to insert a last into the rear part of the upper and mount it on the last pin 36 (if the upper was not previously assembled on its last) and to swing the last depressor I94 "into position to act on the forepart of the last.

The last carries an insole 404 (Fig. 16) the margin of which has been treated with cement for attachment thereto of the insole attaching extension MS of the welt which has also been After the toe end of the last has been positioned against the last-gaging plate 64 as shown in Fig. 16 the operator again depresses the clutch treadle and immediately the v last depressor moves downwardly to force the forepart of the last into the upper. During the first stage of the downward movement of the last depressor and before the last enters the upper the jack 34 (Fig. 4) is operated to tension the upper lengthwise thereof in order to facilitate the entrance of the forepart of the last into 503by the side grippers 60 and 62' and the actionv of the last depressor in forcing the forepart of the last into the upper serves to tension the forepart of the upper widthwise thereof and shape it to the last. The distance between the. side grippers may be adjusted to provide the proper clearance for the forepart of the last by adjustive movement of one or both of the gripper carriers 242 and 2M. Referring to.-Fig.. 9, such adjustment of the carrier 242 is effected by turning the threaded plug 312 in the carrier-operating cam lever 30%). The last depressor remains at the limit of its downward movement until after the upper embracing plates 236 have. closed, as shown in Fig. 22, and gripped the forepart ofthe upper against the last. This occurs immediately after the reverse movement of the jack. After the upper embracing plates have closed on the upper and the last depressor has been retracted the plate 64 (Fig. 1) which Wipes in the toe end of the insole-attaching extension of the welt advances to perform said function while at the same time the wipers 368 and 31-0- advance (Fig. 21) to Wipe in those portions of said. extension at opposite sides ofthe' forepart of the upper. As the-wipers 368 and 310 advance the insole attaching extension is pulled out from. under the gripperplateslflfi' on the. wipers. The grippers and wipers are then retracted and the upper: embracing plates are opened, permitting the shoe to be removed from the machine.

While. the machine has been illustrated with reference to its operation on prewelted shoes, it is to be understood that the machine is capable of operating onother types of shoes. For ex ample, it is adapted to operate on a stitchdown upper in which the lining at the forepart of the upper: wiped inwardly and cement attached to. the margin of: an insole.

Having thus described my invention, what I claim as' new and desire to secure by Letters Patent of' the United States is:

l. A machine. for shaping uppers over, lasts having, in combination, a: gripper for engaging an .outsole-attaching' extension of an upper and holding the upper under tension, a member for forcing the bottom margin of the upper against a last and? the edge face of an insole thereon, a wiper for wiping an insole-attaching extension of the: upper in over the margin of the insole, and a carrier for said gripper, member and wiper movable to operate said member.

2. A machine for shaping uppers over lasts having, in combination, a gripper for engaging an outsole-attaching extension of an upper and holding the upper under tension, a member for forcin-gthe bottom margin of the upper against a last and the edge face of an insole thereon, a wiper for wiping an insole-attaching extension of the upper in over the margin of the insole, a carrier for said gripper, member and wiper movable to operate said member, and means for causing the gripper to grip the outsole-attaching extension and to hold it during the operation of the memher and the wiper.

3. Amacliine for shaping over lasts uppers having outsol e-attaching extensions and insole-attaching extensions having, in combination, a member for acting on the margin of an. end portion of. an upper to cause it to engage closely a last mountedv therein, a gripper constructed and arranged to act on the: outsole-attaching extension of the upper, a. wiper constructed and arranged to act on the insole-attaching extension, and a carrier for said member, gripper and. wiper mounted. for swinging movement to operate said member.

4. Amachine for-shaping. uppers over lasts having, in. combination, upper-embracing, means for gripping an. end. portion of an upper against a last, wipers for: wiping antinsole-attaching extension of the upper. in over' the margin of an insole on the. last bottom, and grippers constructed and arranged. to engage anv outsole-attaching. extension of the upper and to hol'dit during the closing of the upper-embracing means on the upper and thereafter during the operation of. the wipers.

5;. A machine. for-shaping uppers over lasts having, in combination, a pair of upper-embracing members for: gripping an end portion of an upper against a last, wipers for wiping an insole-attachingi extension of the upper in over the margin of an. insole on the last bottom, and grippers constructed and arranged to engage an outsole-atta-ching extension of the upper and to hold it. during the closing of the upper embracing members on the upper and thereafter during the operation of thewipers.

6; A machine for shaping uppers over lasts having, in combination, a depressor for forcing the forepart of a last into the forepart of an upper, 

